UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

February 15, 2017

Date of Report (Date of earliest event reported)

SONUS NETWORKS, INC.

(Exact Name of Registrant as Specified in its Charter)

4 TECHNOLOGY PARK DRIVE, WESTFORD, MASSACHUSETTS 01886

(Address of Principal Executive Offices) (Zip Code)

(978) 614-8100

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02.                                        Results of Operations and Financial Condition.

The information under this Item 2.02 of this Current Report on Form 8-K, including Exhibits 99.1 and 99.2 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), otherwise subject to the liabilities of that Section or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

On February 15, 2017, Sonus Networks, Inc. (the “Company”) issued a press release reporting its financial results for the quarter and year ended December 31, 2016, and posted supplementary financial and operational data on its website, www.sonus.net, in connection with the announcement of such financial results.  Copies of the press release and the supplementary financial and operational data are furnished as Exhibits 99.1 and 99.2, respectively, to this Current Report on Form 8-K.

Item 9.01.                                        Financial Statements and Exhibits.

(d)                       Exhibits

The following exhibits relating to Item 2.02 shall be deemed furnished, and not filed:

99.1                        Press release of Sonus Networks, Inc. dated February 15, 2017 reporting its financial results for the quarter and year ended December 31, 2016, furnished hereto.

99.2                        Supplementary Financial and Operational Data issued by Sonus Networks, Inc. on February 15, 2017, furnished hereto.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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Exhibit Index

4

Exhibit 99.1

Sonus Networks Reports 2016 Fourth Quarter and Full Year Results

$19.2 Million Cash Generated from Operating Activities

Cash and Investments of $126.1 Million at December 31, 2016

For Immediate Release: February 15, 2017

WESTFORD, Mass. — Sonus Networks, Inc. (Nasdaq: SONS), a global leader in secure and intelligent cloud communications, today announced results for the fourth quarter and full year ended December 31, 2016.

“We are pleased with our fiscal 2016 financial results with a solid finish in the fourth quarter,” said Ray Dolan, president and chief executive officer.  “We continue to invest in our strategy to help our customers move to cloud and collaborate with others in the industry to leverage SDN/NFV in an effort to create a more secure and affordable internet.”

Financial Highlights

The following table summarizes the consolidated fourth quarter and full year financial results for fiscal 2016 and 2015 (in millions, except share and per share amounts).

·                  Cash and investments were $126.1 million at year end of 2016, compared to $121.0 million at the end of the third quarter of 2016.

(1) Please see the reconciliation of Non-GAAP and GAAP financial measures in the press release appendix.

Technology Highlights

·                  Sonus Cloud Link was introduced for enterprise customers migrating to Microsoft Office 365 Cloud PBX.  Sonus Cloud Link provides a complete solution to enable enterprises to transition from traditional voice deployments to a Microsoft Skype for Business implementation, whether on-premises or in the cloud.

·                  The Sonus SBC 1000, Sonus SBC 2000, Sonus SBC 5000 Series, Sonus SBC 7000 and Sonus SBC SWe received Microsoft Skype for Business certification in 2016.

·                  The Company introduced enhancements to its comprehensive cloud solution with cloud-optimized versions of its PSX and EMS.  The enhanced solution strengthens Sonus’ leadership position in delivering real-time communications for networks migrating to the cloud.

·                  The Sonus SBC 5110, Sonus SBC 5210 and Sonus SBC 7000 achieved United States Federal Security certification.  By being Federal Information Processing Standard (FIPS) 140-2 validated, United States government and other regulated customers can utilize Sonus session border controllers to lower network threat levels of real-time communications and secure their mission-critical communications.

·                  The Company recently introduced the Sonus SBC 5400, the industry’s highest performing mid-range session border controller, designed to address real-time communications challenges with security, interoperability and scalability by delivering unparalleled price for performance compared to competing products.

Management Comments and Outlook

“Looking forward to 2017, we see another year of flat to low single digit revenue growth.  Consolidation remains a key theme for our customers and their suppliers, and this creates further timing uncertainty.  We are comfortable with the current analyst consensus estimates of fiscal 2017 non-GAAP EPS.  Consistent with those estimates, we expect a GAAP loss per share of $0.35 and non-GAAP diluted earnings per share of $0.26(1).  We do, however, expect our financial results to be more heavily weighted to the second half based on current trends we see in the marketplace,” said Dolan.

Dolan continued, “We have averaged over the last eight quarters a book-to-bill ratio of greater than one, and as a result, we entered 2017 with approximately $8 million more in revenue backlog as compared to last year.  The combination of higher backlog and the quality of our funnel supports our annual outlook.  We expect our first half revenue to be approximately $105 million, with approximately $52 million in our first quarter.”

Susan Villare, interim chief financial officer, commented, “In our fourth quarter of 2016, we met or exceeded our October 2016 consolidated guidance for revenue, gross margin and EPS.  Our flagship SBC 7000 and SBC 5000 both performed well, and product revenue from these products grew approximately 9% in fiscal 2016 compared to the prior year.  We generated $19.2 million of cash from operating activities in fiscal 2016 and ended the year with cash and investments at $126.1 million.”

(1) Please see the reconciliation of Non-GAAP and GAAP financial measures in the press release appendix.

Taqua Acquisition Financial Update

Sonus acquired Taqua, LLC, a leading supplier of IP communications systems, applications and services to mobile and fixed operators, on September 26, 2016.  The Company’s revenue and GAAP net loss for the year ended December 31, 2016 included $1.9 million and $4.7 million, respectively, attributable to Taqua since the acquisition date.  The Company had initially recorded $10.0 million of contingent consideration in the third quarter of 2016, but subsequently updated its revenue projections, resulting in a reversal of this amount such that as of December 31, 2016, no incremental contingent consideration was recorded.

Stock Buyback Program

During the fourth quarter of 2016, the Company repurchased a total of 0.4 million shares at a weighted average price of $5.98 per share, for a total of $2.4 million.  Since the inception of the stock buyback program in July 2013, the Company has repurchased a total of 6.6 million shares at an average price of $14.32, for a total of $94.6 million as of December 31, 2016.  As of December 31, 2016, there were 49.0 million shares of the Company’s common stock outstanding.  Under the current stock buyback program, the Company is authorized to repurchase up to an additional $5.4 million of the Company’s common stock.

Conference Call Details

The Company will offer a live, listen-only webcast of the conference call via the Sonus Networks Investor website at http://investors.sonusnet.com/events.cfm where supporting materials, including a presentation and supplemental financial and operational data, have been posted.

Replay Information

An archived version of the broadcast will be available on the Sonus Networks Investor website shortly after the conclusion of the live event.  A telephone playback of the call will be available following the conference call until February 28, 2017 and can be accessed by calling 800 633 8284 or +1 402 977 9140 for international callers. The reservation number for the replay is 21841447.

Tags

Sonus Networks, Sonus, SONS, 2016 fourth quarter, 2016 earnings, results, IP-based network solutions, SBC, DSC, SWe, SDN, software edition, software SBC, session border controller, session management, SIP trunking, cloud VoIP communications, unified communications, UC, VoIP, IP, media gateway, GSX, NFV

About Sonus Networks

Sonus brings intelligence and security to real-time communications.  By helping the world embrace the next generation of cloud-based SIP and 4G/LTE solutions, Sonus enables and secures latency-sensitive, mission critical traffic for VoIP, video, instant messaging and online collaboration.  With Sonus, enterprises can give priority to real-time communications based on smart business rules while service providers can offer reliable, comprehensive and secure on-demand network services to their customers. With solutions deployed in more than 100 countries and nearly two decades of experience, Sonus offers a complete portfolio of hardware-based and virtualized session border controllers (SBCs), diameter signaling controllers (DSCs), policy/routing servers, network intelligence applications, media and signaling gateways and network analytics tools.  For more information, visit www.sonus.net or call 1-855-GO-SONUS.

Important Information Regarding Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the U.S. Private Securities Litigation Reform Act of 1995, which are subject to a number of risks and uncertainties.  All statements other than statements of historical facts contained in this release, including statements made by our executive officers in the introductory paragraph and the section “Management Comments and Outlook”, statements in the sections “Technology Highlights” and “Taqua Acquisition Financial Update” and statements regarding our future results of operations and financial position, business strategy, strategic position, plans and objectives of management for future operations and plans for future product development and manufacturing are forward-looking statements.  Without limiting the foregoing, the words “anticipates”, “believes”, “could”, “estimates”, “expects”, “expectations”, “intends”, “may”, “plans”, “seeks”, “projects” and other similar language, whether in the negative or affirmative, are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words.

Forward-looking statements are based on our current expectations and assumptions regarding our business, the economy and other future conditions.  Because forward-looking statements relate to the future, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict.  Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including, but not limited to, the timing of customer purchasing decisions and our recognition of revenues; economic conditions; our ability to recruit and retain key personnel; difficulties supporting our strategic focus on channel sales; difficulties retaining and expanding our customer base; difficulties leveraging market opportunities; the impact of restructuring and cost-containment activities; our ability to realize benefits from the acquisitions that we have completed; the effects of disruption from the acquisitions that we have completed, making it more difficult to maintain relationships with employees, customers, business partners or government entities; the success implementing the integration strategies with respect to the acquisitions that we have completed; litigation; actions taken by significant stockholders; difficulties providing solutions that meet the needs of customers; market acceptance of our products and services; rapid technological and market change; our ability to protect our intellectual property rights; our ability to maintain partner, reseller, distribution and vendor support and supply relationships; higher risks in international operations and markets; the impact of increased competition; currency fluctuations; changes in the market price of our common stock; and/or failure or circumvention of our controls and procedures.  These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.  We therefore caution you against relying on any of these forward-looking statements.  Important factors that could cause actual results to differ materially from those in these forward-looking statements are discussed in Part I, Item 2 “Management’s Discussion and Analysis of Financial Condition and Results of Operations”, Part I, Item 3 “Quantitative and Qualitative Disclosures About Market Risk” and Part II, Item 1A “Risk Factors” in the Company’s most recent Quarterly Report on Form 10-Q.  Any forward-looking statement made by us in this release speaks only as of the date of this release.  Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them.  We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Sonus is a registered trademark of Sonus Networks, Inc.  All other Company and product names may be trademarks of the respective companies with which they are associated.

Discussion of Non-GAAP Financial Measures

Sonus management uses several different financial measures, both GAAP and non-GAAP, in analyzing and assessing the overall performance of the business, making operating decisions, planning and forecasting future periods, and determining payments under compensation programs.  Our annual financial plan is prepared both on a GAAP and non-GAAP basis, and the non-GAAP annual financial plan is approved by our board of directors.  Continuous budgeting and forecasting for revenue and expenses are conducted on a non-GAAP basis (in addition to GAAP) and actual results on a non-GAAP basis are assessed against the annual financial plan.  We consider the use of non-GAAP financial measures helpful in assessing the core performance of our continuing operations and liquidity, and when planning and forecasting future periods.  By continuing operations, we mean the ongoing results of the business excluding certain expenses and credits, including, but not limited to: stock-based compensation, amortization of intangible assets, depreciation expense for an abandoned facility, patent litigation settlement costs, acquisition-related expense, restructuring, adjustments to the Company’s deferred tax asset related to net operating loss carryforwards and certain gains and losses included in other income (expense).  We consider the use of non-GAAP earnings (loss) per share helpful in assessing the performance of the continuing operations of our business.  While our management uses non-GAAP financial measures as a tool to enhance their understanding of certain aspects of our financial performance, our management does not consider these measures to be a substitute for, or superior to, GAAP measures.  In addition, our presentations of these measures may not be comparable to similarly titled measures used by other companies.  These non-GAAP financial measures should not be considered alternatives for, or in isolation from, the financial information prepared and presented in accordance with GAAP.

Investors are cautioned that there are material limitations associated with the use of non-GAAP financial measures as an analytical tool.  In particular, many of the adjustments to Sonus’ financial measures reflect the exclusion of items that are recurring and will be reflected in our financial results for the foreseeable future.

Stock-based compensation is different from other forms of compensation, as it is a non-cash expense.  For example, a cash salary generally has a fixed and unvarying cash cost.  In contrast, the expense associated with an equity-based award is generally unrelated to the amount of cash ultimately received by the employee, and the cost to us is based on a stock-based compensation valuation methodology and underlying assumptions that may vary over time.  We believe that excluding non-cash stock-based compensation expense from our operating results facilitates the comparison of our financial statements to our historical operating results and to other companies in our industry.

We exclude the amortization of acquired intangible assets from non-GAAP expense and income measures.  These amortization amounts are inconsistent in frequency and amount and are significantly impacted by the timing and size of acquisitions.  Although we exclude amortization of acquired intangible assets from our non-GAAP expenses, we believe that it is important for investors to understand that intangible assets contribute to revenue generation.  We believe that excluding the non-cash amortization of intangible assets facilitates the comparison of our financial results to our historical operating results and to other companies in our industry as if the acquired intangible assets had been developed internally rather than acquired.

During the second quarter of 2015, we reached an agreement with the landlord of one of our previously restructured facilities to vacate the facility without penalty or future payments.  As a result, we were able to vacate the facility earlier than originally planned.  In connection with this settlement, we recorded incremental depreciation expense to account for the change in estimated life of the fixed assets related to this facility.  We believe that excluding this incremental depreciation expense facilitates the comparison of our financial results to our historical operating results and to other companies in our industry, as such incremental depreciation expense is not related to our ongoing operations or our core business activities.

In June 2016, we recorded $0.6 million of patent litigation settlement costs.  This amount is included as a component of General and administrative expense; however, we believe that such patent litigation settlement costs are not part of our core business or ongoing operations.  Accordingly, we believe that excluding this patent litigation settlement expense facilitates the comparison of our financial results to our historical operating results and to other companies in our industry.

We consider certain transition, integration and other acquisition-related costs to be unpredictable and dependent on a significant number of factors that may be outside of our control.  We do not consider these acquisition-related costs to be related to the continuing operations of the acquired business or the Company.  In addition, the size, complexity and/or volume of an acquisition, which often drives the magnitude of acquisition-related costs, may not be indicative of such future costs.  We believe that excluding acquisition-related costs facilitates the comparison of our financial results to our historical operating results and to other companies in our industry.

We have recorded restructuring expense to streamline operations and reduce operating costs by closing and consolidating certain facilities and reducing our worldwide workforce.  Additionally, as previously announced, we expect to record restructuring expense in connection with new restructuring initiatives over the next twelve months.  We review our restructuring accruals regularly and record adjustments (both expense and credits) to these estimates as required.  We believe that excluding restructuring expense and credits facilitates the comparison of our financial results to our historical operating results and to other companies in our industry, as there are no future revenue streams or other benefits associated with these costs.

We anticipate that we will reverse $0.8 million of deferred tax assets related to net operating loss carryforwards for our subsidiary in Canada based on positive earnings evidence in the subsidiary over a consecutive three-year period.  This adjustment will result in an income tax credit and reduce our provision in the reversal period.  We believe that such adjustments are not part of our core business or ongoing operations.  Accordingly, we believe that excluding the income tax credit arising from the reversal

of the deferred tax assets facilitates the comparison of our financial results to our historical results and to other companies in our industry.

In July 2016, we sold the NET domain name to a third party and recognized a gain, net of commission and fees, of $0.8 million, and in December 2016 we sold a block of IP addresses that we had acquired in connection with our acquisition of Performance Technologies, Incorporated and recognized a gain, net of commission and fees, of $0.5 million.  In October 2015, we sold the PT domain name and recognized a gain, net of commission and fees, of $0.9 million.  These amounts are included as components of Other Income, net in the respective fiscal years.  We believe that such gains are not part of our core business or ongoing operations.  Accordingly, we believe that excluding the other income arising from this sale facilitates the comparison of our financial results to our historical results and to other companies in our industry.

We believe that providing non-GAAP information to investors, in addition to the GAAP presentation, will allow investors to view the financial results in the way management views the operating results.  We further believe that providing this information helps investors to better understand our financial performance and evaluate the efficacy of the methodology and information used by our management to evaluate and measure such performance.

For more information

Sara Leggat

(978) 614-8841

sleggat@sonusnet.com

SONUS NETWORKS, INC.

Condensed Consolidated Statements of Operations

(in thousands, except percentages and per share amounts)

(unaudited)

SONUS NETWORKS, INC.

Condensed Consolidated Statements of Operations

(in thousands, except percentages and per share amounts)

(unaudited)

SONUS NETWORKS, INC.

Condensed Consolidated Balance Sheets

(in thousands)

(unaudited)

SONUS NETWORKS, INC.

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

SONUS NETWORKS, INC.

Supplemental Information

(In thousands)

(unaudited)

The following tables provide the details of stock-based compensation, amortization of intangible assets, and gains on the sales of domain names and IP address blocks included in the Company’s Statements of Operations and the line items in which these amounts are reported.

SONUS NETWORKS, INC.

Supplemental Information

(In thousands)

(unaudited)

The following tables provide the details of stock-based compensation, amortization of intangible assets, depreciation expense related to an abandoned facility, patent litigation settlement expense and gains on the sales of domain names and IP address blocks included in the Company’s Consolidated Statements of Operations and the line items in which these amounts are reported.

SONUS NETWORKS, INC.

Reconciliation of Non-GAAP and GAAP Financial Measures - Historical

(in thousands, except percentages and per share amounts)

(unaudited)